Warp-leasing apparatus.



0. FISCHER.

WARP LEASING APPARATUS.

APPLICATION FILED APR. 6. 1907.

` Patented Mar. 9, 1909.

0. FISCHER.

' WARP LEASING APPARATUS.

' APPLICATION FILED APR. e, 190.7.

914,401 A Patented Mar. 9, 1909.

4 SHEETS-SHEET 2.

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0. FISCHER.

WARP LEASING APPARATUS.

APPLICATION FILED APB.. 8, 1907. 914,401 Patented Mar. 9, 1909.

4 SHEETS-SHEET 3.

Wzessex IWI/"M077 'mw M #MM Norm rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr D 0. FISCHER. WABP LEASING APPARATUS, APPLIOATIO PILLD'APBHG, 1907.

Patented M9119, 1909.

4 SHEETS-SHEET 4.

mm @www Mr/7e y Plauen-in-Vogtland Germany,

-tension and guide at t e reversal.

. OTTO FISCHER, OF PLAUEN, GERMANY.

' wher-LEASING APPARATUS.

Specification of Letters Patent. f

Patented March 9, 1909.

Application med April e, 1907. serial No. scarso.

`fI'oaZtwhom iti/may conce-rn:

vBe it known that I, OTTO Y p FrscHnR, a sub- -lectof the King of Saxony,

- and residing at have inventeda Warp-Leasing Apparatus, of which the following is a specification..

flhis invention relatesv to a warping machine in which the tensionlof the beamed `war is regulated according to the position oft e leasing spindles, that is to say the tension of the warp is strongest where the leasingtakes place. 'l'he warp'laidto form a leasebehind the leasing .tools is relieved of tension. i

Another advantage'of the leasing device lies in the 4fact that the driving mechanism of the leasing spindles is thrown out of gear when no thread is taken up by the separating or dividingdevi'ce, so that there is greater reliability-that the separated threads will be alternately leased, and Vnot two successive threads laid over the needles in the' same way. A machine embodying the invention is shown in the annexed drawing; in this inachine the leasing device niovest'rom the right to the left.

Figure 1 is a front view, Fig. 2 a side view, `and Fig. 3 a plan view of the macline as a whole. l Fig. 4 shows the connectionbetween the main shaft and the worm spindle, Fig. 5 is a rear view of the leasing device, and Fig. 6 a side view of the separating or dividing and uncoupling device on a somewhat larger scale. Fig. -7 is a partial plan view of Fig. 6,' Fig..8 aside view of the separating or dividing device with the divider raised and the thread-spreader in action, Fig. '9 shows the mechanism for driving the spindles with the actuating hook engaged, Figs. 10 and 11 illustrate the action for separating and taking up the warp, Fig. 12 shows the spindle driving mechanism adjusted for reversal, and Fig. 13 illustrates the osition of thewarp- Fig. 14 ia side view of the tensioning and untensioning device, Fig. 15 a side view ofthe tensioning gripper, and Fig. 16 a side view of the warp guide with dividing and brakewheel.'

'The tensioning device for the warp mainly consists of a frame 1 at the sides of which are arranged the tensioning grippers' 2 and` 3 adapted to be closed by means of eccentriclevers 5 or other mechanism. The warp to be wound on the warp beam is first passed which serves as-a support,

through the-open gripper 2, along the frame 1 to the gripper 3 and to the` usual brush roller 4. l

For improving the laying of the warps and providing means .1 for reducing` `the strain thereon, as will be described hereinafter, two bars 6 are placed across the war andv engaged by hooks 7 (Fig. 14) before tlle gripper 3 is closed. To give the war the desired tension the grip er 3 is piuvota ly supported and adjustable y use of a hand'crank 1() and worm gear Sand 9 (Figs. l and 15). At a proxiniately the level at which the crosst reads are to be drawn in, i. e, at which the leasing-ap aratus moves, there is' arranged horizontal y below thc warp a bar 11 (Figs. '.1 and .13) rotatable into vertical position, so that during the separating or pricking otl' and leasing'operations the threads cannot yield, and so `that they lie side by side and not one upon the other. A spring 12 holds the bar 11 in the' vertical tensioning position, in which it tensions the warp so `that the drawing inof the cross-threads can commence.

To allow of separately leasing the threads the leasing apparatus must perform a slow, intermittent movement, so that it is stationary during'the pricking oil and leasing and thereupon nieves through a distance approximately equ l to the distance between the axes oftwo threads, This movement is produced by the following mechanism. Rotation of the driving wheel 15 and shaft 150 by hand, produces rotation of the shaft 16 by means of bevel gear 160, 161, and cam disk 17 on the shaft 16. imparts rocking movement to a bell-crank-lever 18. To the lever 18 .is'connected a -pawl 19 which is caused by its movementin one direction to engage a ratchet-Wheel 20, so that each revolution of the driving wheel 15 rotates the ratchet-wheel through an angle corresponding to .one tooth-space.. The ratchet-wheel 20 is fixed to the long worm s indle 21, which rotates'v in the screw-threeJ ed eye 22 of the frame 1 and 1vis connected tov the leasing apparatus, 'sothat the latter is slowly and intermittently moved or traversed. The pricking off needle 23 is fixed to arod 24 which is pressed by a spring 25 so that its roller 250 'rides' against a cam 26 ixed tothe shaft 16 (Figs. 1 and 6), so that during" each revolution Voffthe cam the rod 24 is' lifted and lowered.

During the downward -28 canengageit with their ends bent in opl and l2), which is lifted and lowered by the time the hook v43 engages. one of the '20 tulnftog-theywheel 44' the two spind es .are

. mgfo'pe'ration begins, end of'one spindle,

thread, ani the endlof the other spindle it, and onfa furtherhal-f revolution of the below the spindle 27 and'iabove the spindle that the rod 35 is moved downward before o f Igetherwith the pins 38, it is lowered'inti the 'ratesf'thread from the warp and thrusts it .erally' rojlfeeting pins v440, for' exam lefour.

in the head 34 a rod35, whichl is pressed by a spring 3o'so.that its roller 350 rides against a cem 37l xed to the shaft 16 (Figs. 1, 2 and" yfeeder 40, cting as a feeder for the s indles,

1 thereafter the lever 29 is rocked -toward the'- inov ement of the rod 24 Athe needle 23 sepal by means oi its inclined surface toward the right (Fi s.'- and 7 so that the. thread canhg'taken a feedere() (Fig. 1 0) hereinafter described, and moved; farther toward the right (Fig. 11), until the two-spindles 27 and positej-directions.I g'l'rh'espindles 27 and 28 are n'iountedI tp revolveeach on its. axis and are moved hyA actionofthe hook 43 (Figs. 5, 9

cam-disk already referred to,`this hook beingya'dapted to. rotate a wheel 44v toothed tits' circumference and provide'd with lat- Thew ee"'4f4. meshes .with toother wheels 30fan'd 31-lxedqto the spindles27 nd'28.

440, off;y the/wheel` 44 and gives a. artial rotated through '18.052 degrees about their axes.; When j the' 4feeder 40 has drawn a thread toward the spindlesv 27 and 28 so tthelatter can engage it, the actual leassayLofthe-s indle 27 ,f being turned below the two spindles this warpv threadv will remain 28. For the next thread'theiirst operation is repeated, 'and s'o on. ln manner the. warp vis leased in .the entire Width. For` prop'erl carryin out this operation'without failiiire, auxiliary devices are required, which willnow be described.

In addition tothe rod 24 there is slidable To the lower'end ofthe rodB there are fixed two bent; pins 38 located one at each side of the prielnn off needle 23. .A double- -armed lever 40 is ulcrumed at 39 on the rod 35. The lower end of this lever forms a gripper and the-upper end thereof is con# nected by a rod 4l to the leve. 29.l` The relaf'v tive positions of the cams 37 and 26 areqsuch the needle 23 is moved upward. ,Since 'the is thus indirectly connected to the ro 35, to-

Warp ywith the pins (Fig. 8). Immediately left by the cam 33, so thatxthe feeder be .ters of two threads.

vhave been priclred' oil'.

tween the separated thread and the warp rocks to the right (Figs. 8 and 1l) and moves the se arated thread into reach of the spindies `ig. 11). Meanwhile the rod 35 has remained in its lower position, so that the pins 38 remain in front of the remainder of the e warp and preventthe, dragging., Ove-I. Offthe next thread. A similar purpose is'fulfilled by a yoke 42 (Figs. 6, 7 and 8) which is con.l

nected to the rod 3 5 and abuts against the warp behind the guides' 13 and 14,-between which passes that part of the warp which is within reach-'of the separating-device. The guide i4 is fixed, but the guide'lB is yieldable and can be put out plained hereinafter.

of action, yas. will be ex- Frequently warpfthreadslie so closely tol gether that there is a risk of two threadsbeg ingA priched oil' to ether, so that 'faults' arise from two threads aeing inthe. same position with regard to the lease. .It is therefore in practice essential that themovernent' of the entire separating device between the rickv ing oli of two threadsvshould be slightly* shorter than the distance between the censpindles is restricted in this Imannery Ithe needle'fails to reach a thread when a certain number of threads, say fifteen or twenty, In order '1 that no fault should arise from this factthe arrangement is made that the spindles remain at rest If the movement ofthe when a thread is missed. For-this purpose l the hoch 43 (Figs. 5, 9 andv12),iwhich is nor-v mally operated by the crank-disk '17: 'for ro- 30 and 31]? of the spindles, isv so controlled that it does`not engage the wheel 44 unless a thread is priched off. A bell-crankflever 32 (Figs. '1, 2, 6 and 8) is arranged adjacent 4the needle, so that each thread pricked o'ffcomes into contact with the vertical arm ofthe said l lever and rocks' it toward the right (Figs. 6 and 8).. By this means the hook-sha ed arm disenfof the 'bell-cranh-lever is lifted an gaged from the abutment 45 xed tothe'le ver 29, so thatthe lhell crankl .ever does not take part they movement of thelatter. If, .h'owever,` no thread is pricked, oifthe bell' 1 .mains in engagement with the e'ibutrnent 45.-.'

cranldever. is'not rotated -and therefore re- The bell-cranhlever 32 is pivotally connected to the front end of the rod 46, the other end of which is connected `to .the loell-cranlrlever 47 (Figs. 2 and 3). `A spring 48 thrusts the rod 46 toward the machine head. The 'ree larm of the lever 47 is located at the innersid'e of thel'ho'olr43 in' such a position that when the lever 32i moved aside while the `rod 46 is in its raised, forward osition, the hook .43 is disengagedfrom the tree arm of the lever 47, sc that the wheel 44 is rotated. lf, hows ever, no thread is pricked off, so that the lever 32 is not disengaged from the abutment 45, the lever 32 and rod 45-are moved by the 410o tating'thle wheel 44 and the toothed wheels" rotation of the driving wheel 1.5.

movement of the lever ,29, and the bellcranl-lever 47 is rocked toward the right (Fig'. 3) against the action ofthe spring'48, and the hook 43 is moved ouU` of the path of the pins fixed to the wheel 44, so that the spindles are not actuated. There is, therefore, no risk of a plurality of consecutive war -threads being drawn on to the needles in t e same direction.

By the entrance of the spindles between the war threads the tension of the war between t 1e grippers 2 and 3 is considerab yincreased, so that resistance is opposed to the rl`he warp is, therefore, loosened in proportion as'the spindles advance, and this is preferably effected by means of a bent or beveled bar 50' placed under the warp between the grippers, l and by adjusting this bar the path of the warp is shortened, so that the tension is reduced. The bar 50 (Figs. 1, 2, 3 and 14) can be operated by hand or by the slide. 1n 1 Figs. 1 and 14. the bar 50 is between the fixed bars 6 ,already referred to and is moved toward the left by an arm l19 screwed to the apparatus (Figs. 3 and 14). Whereas, therefore, the threads on the left hand side of the bend are tensioned, owing to the fact that they have to traverse a longer path, the threads on the right hand side are sufficiently slack to allow the feeder to enter without difficulty.l

In the case of warps the threads of which are interloclred by fibers, i. e. in the case of woolen warps, a single separating device does not veryf'satisfactorily move the threads so far apart vthat there is sufficient clearance between them while within reach of the spindies. 1t is, therefore, desirable to provide another separating device, preferably a-rl ranged between the two spindles. rl."his device may be identical with or similar to the pricking-off needles.

In the construction shownr in Figs. 1, 2 and 11 this device comprises a rocker 51 with a laterally projecting arm 52. The rocker is fixed to a shaft 53 which is rotated alternately in both directions by the main shaft 16, eccentric 54, rod 55, and arm 56. The

4rotation ofthe shaft 53 causes 'the thread l separated by the needle 23 to be engaged by the rocker and moved clear of the remainder of the warp, and the arm 52 presses the said thread toward the spindles and drawingin needles 57 and 58; the latter carry the threads for under-binding the thread-cross. l W'henv the crank is reversed, after the thread x has been read in to all the warps, the hook 43 I is of course disengaged, since it actuates the spindles 27 and 28 by means of the toothed wheels 3() and 31 during the forward movement of the apparatus. Anolther hook 69 is brought into action during the reverse movement, to rotate the wheel 44 in the opposite direction. During the reverse movement it l (Fig. 4), the latter is of avantage to use, for rotating the worm spindle 21, mechanism which allows of more rapid movement than the pawl 19 and ratchet wheel 20. The guide 13 is carried by a bell-crank-lever 60 fulcrumed' at 59; one arm of this lever is -connected by a link 61' to an arm 63 lfixed to the shaft 62 (Figs. 1 and 13). To the rear end of the shaft 62 is fixed an arm 64 connected by a link 65 to a lever 67 fixed to a shaft 66 (Figs. 5 and 12). The shaft 66 is provided with an abutment 68 which moves between the hooks 43 and 69l (Figs. 5 and 12). When the guide 13 is ir' its upperposition reach of the hook 69 and Oagement of the latter witi revents the enthe wheel 44.

sWhen the abutment 68 is in this position a spring 71 bearing against the hand crank 7() of the ward the right (Fig. 5). When the crank is rotated downward it is also held in this positioirby the spring 71. and at the same time the shaft 66 with the abutment 68 is moved by the lever 64, link 65 and lever 67 so far to the left (Fig. 12) that thefabutment is removed from the hook 69,'-and the latter comes .into action during the reverse movement of the wheel 15 and rotates the spin- By the disf l placement of the shaft 66 the pawl 19 is disdles in the reverse dir `action.

engaged (Fig. 12), the abutment 73 on the shaft 66 having been previously removed from the arm 72 of this pawl. This disengagement is necessary, since the reverse movement of the worm-spindle 21 is e'e'cted av means of a cha-in and sprocket-wheel 74 being driven by means of pawl and ratchet gear 75,. 76 when the main shaft is reversed. During the normal rotation of the main shaft the ratchet wheel rotates `without actuating the pawl. The bellcrank-lever 6() is provided with a hook 7,7-

which engages the lng 770 of the tensioning bar 11 and rocks the latter aside (Fig. 13) in order to relieve the warp when the guide 13 moves downward. 1f the warp is exceptionally close a wheel79 provided with pins 73 (Fig. 1. 6) is arranged adjacent the upper guide 14, this wheel being rotated very slowly for the purpose of holding the threads at proper distance.

.Vhat l. claim as my invention and desire to secure by Letters Patent of the United States is 1- 1. ln a warp leasing machine, thecombination of a leasing device movable transversely to the warp, means for giving intermittent movement to the leasing device, thread separating finger movable to intersect the piane of the threads, means for operating the same on each movement of the shaft 62 holds the latter' thrust toiro leasing device to separate a thread from the ing the separated thread, two bent ended the cross-shed ,said means comprisin ahook,

. rated thread', two bent ended spindles for receivingl gthefseparated thread, means forl threadsseparator.

I v'bniation'of -a leasing device'movable trans-v -bination of aleasing. device movable transverselyto ithe warp, means for giving mterleasing devicev toseparate a thread from the other threads,

spindles for receiving the separated thread, l and means for rotating these Vspindles through 418() degrees to form theoss-shed.

2. inn a warp leasing machine, the com-` bination' of means for holding the warp threads, a feed device f or\n'1ovingv the sepa-v ratedthread, two bent ended spindles for receiving the separated thread and means 4for rotating these spindles through 180 degrees to form thecr'oss-shed, comprising toothed pinions carrying said spindles, a toothed wheel meshing with said vpinions,l pins on said toothed wheel, two hooks for engaging said pins and giving partial rotation to said toQthed wheel in one or other direction and means for placing either hook out of fiction.4

In a warp leasing machine, the combination of means for holdingthe warp threads, a 1@feed device for movingy the separated thread, two bent ended s indles for receiving the separated thread and) means for rotating these spindles through 180 degrees to form.

and disabling means forft-hrowingy t e hook temporarily out of action operated in theabsence of a separated threadl ,4; Inra warp leasing machine, the committent movement lto the` leasing device, a downwardly movable finger, means for operating'the same oneaehmovement of' the grippers for stretching the threads, afeed device for moving the separotating these spindles through 18() degrees togform the cross-shed', and guides above and vbelow the warp-threads in proximity to the 5. In a Warp leasing machine, the comversely to the warp, mean-sior giving intermittent movement to lthefleasmg device, a-

`- other threads, grippers for stretching the bination. of means for thread separator, means for' lowering the i lower guide,l a warp tensioner, and connection between' the latter and the lower guide.

In a'warp leasing machine, the comholding the warp threadsa'feed device for moving the separated thread, two bent ended spindles for re- 1 ceiving thel separated'thread and means for rotating these spindles through 180 degrees to form the cross-shed, com rising toothed pinions carrying saidv spin les, a toothedy wheel meshing Withsaid pinions, pins on said too'thedwheel,l two hooks for engaging said' pins and giving partial rotation to said toothed wheel in one or other direction, means operative for placing the forward driving hook out of actlon, andallo'wing the rearward driving 'hook to operate, and -a speeded driving mechanism for the latter hook. 5

v 7.` In a Warp leasing machine, the combination oi a leasing device movable transveselyl to the Warp, means for giving intermittent movement to the leasing device, a downwardly movable finger, means ior operating thel same on each4 movement of the leasing device to separate a thread from the other threads, grippers for stretching the threads, a feed device `for moving the separated thread, two,bent Iended spindles/for reaio..

ceiving the separateddthread, means'forroy tating thesespindles through 180 degrees to forni the cross-shed, guides above and below the warp threads in proximity to the thread separator, and a Pinwheel adjacent to the upper guide. v

i witness whereof l have signed this speciication in the presa ce of two Witnesses.

OTTO FISCHER. Witnesses:- Y

OsKAn FISCHER, AnoLF GEORGE. 

